JP6120854B2 - メチオニン塩の製造法 - Google Patents
メチオニン塩の製造法 Download PDFInfo
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- JP6120854B2 JP6120854B2 JP2014527590A JP2014527590A JP6120854B2 JP 6120854 B2 JP6120854 B2 JP 6120854B2 JP 2014527590 A JP2014527590 A JP 2014527590A JP 2014527590 A JP2014527590 A JP 2014527590A JP 6120854 B2 JP6120854 B2 JP 6120854B2
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- reaction
- hydantoin
- range
- rectification column
- methionine
- Prior art date
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- 125000001360 methionine group Chemical class N[C@@H](CCSC)C(=O)* 0.000 title claims description 17
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 121
- 238000000034 method Methods 0.000 claims description 61
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 claims description 54
- 229940091173 hydantoin Drugs 0.000 claims description 49
- WJRBRSLFGCUECM-UHFFFAOYSA-N hydantoin Chemical group O=C1CNC(=O)N1 WJRBRSLFGCUECM-UHFFFAOYSA-N 0.000 claims description 43
- 239000000243 solution Substances 0.000 claims description 43
- 230000008569 process Effects 0.000 claims description 38
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 30
- CLUWOWRTHNNBBU-UHFFFAOYSA-N 3-methylthiopropanal Chemical compound CSCCC=O CLUWOWRTHNNBBU-UHFFFAOYSA-N 0.000 claims description 27
- 230000015572 biosynthetic process Effects 0.000 claims description 25
- SBKRXUMXMKBCLD-UHFFFAOYSA-N 5-(2-methylsulfanylethyl)imidazolidine-2,4-dione Chemical compound CSCCC1NC(=O)NC1=O SBKRXUMXMKBCLD-UHFFFAOYSA-N 0.000 claims description 17
- 229910021529 ammonia Inorganic materials 0.000 claims description 15
- 239000007789 gas Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000006096 absorbing agent Substances 0.000 claims description 13
- 238000005904 alkaline hydrolysis reaction Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 8
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 7
- 238000003786 synthesis reaction Methods 0.000 claims description 7
- 229910052726 zirconium Inorganic materials 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- -1 2-methylmercapto-ethyl Chemical group 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000010924 continuous production Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 229910000288 alkali metal carbonate Inorganic materials 0.000 claims description 4
- 150000008041 alkali metal carbonates Chemical class 0.000 claims description 4
- 239000011541 reaction mixture Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- FFEARJCKVFRZRR-BYPYZUCNSA-N L-methionine Chemical compound CSCC[C@H](N)C(O)=O FFEARJCKVFRZRR-BYPYZUCNSA-N 0.000 description 38
- 229960004452 methionine Drugs 0.000 description 35
- 229930182817 methionine Natural products 0.000 description 34
- 238000000066 reactive distillation Methods 0.000 description 30
- 238000006460 hydrolysis reaction Methods 0.000 description 27
- 230000007062 hydrolysis Effects 0.000 description 24
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 16
- 108010016626 Dipeptides Proteins 0.000 description 15
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 14
- 150000002741 methionine derivatives Chemical class 0.000 description 13
- 239000000047 product Substances 0.000 description 11
- ONFOSYPQQXJWGS-UHFFFAOYSA-N 2-hydroxy-4-(methylthio)butanoic acid Chemical compound CSCCC(O)C(O)=O ONFOSYPQQXJWGS-UHFFFAOYSA-N 0.000 description 10
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 10
- 239000006227 byproduct Substances 0.000 description 10
- 229910052700 potassium Inorganic materials 0.000 description 10
- 239000011591 potassium Substances 0.000 description 10
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 10
- 229910000027 potassium carbonate Inorganic materials 0.000 description 8
- 235000011181 potassium carbonates Nutrition 0.000 description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 description 7
- 239000001569 carbon dioxide Substances 0.000 description 7
- 239000007791 liquid phase Substances 0.000 description 7
- 239000012452 mother liquor Substances 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- BDAGIHXWWSANSR-UHFFFAOYSA-N Formic acid Chemical compound OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 5
- 239000002585 base Substances 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 5
- 108010085203 methionylmethionine Proteins 0.000 description 5
- FYWDUQCSMYWUHV-UHFFFAOYSA-N 3-chloro-5-hydroxypentan-2-one Chemical compound CC(=O)C(Cl)CCO FYWDUQCSMYWUHV-UHFFFAOYSA-N 0.000 description 4
- 238000004128 high performance liquid chromatography Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- WFIZEGIEIOHZCP-UHFFFAOYSA-M potassium formate Chemical compound [K+].[O-]C=O WFIZEGIEIOHZCP-UHFFFAOYSA-M 0.000 description 4
- 159000000001 potassium salts Chemical class 0.000 description 4
- 239000012808 vapor phase Substances 0.000 description 4
- FFEARJCKVFRZRR-UHFFFAOYSA-N L-Methionine Natural products CSCCC(N)C(O)=O FFEARJCKVFRZRR-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 230000005204 bell stage Effects 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 235000019253 formic acid Nutrition 0.000 description 3
- 150000001469 hydantoins Chemical class 0.000 description 3
- ZYTPOUNUXRBYGW-UHFFFAOYSA-N methionyl-methionine Chemical compound CSCCC(N)C(=O)NC(C(O)=O)CCSC ZYTPOUNUXRBYGW-UHFFFAOYSA-N 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 2
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 2
- ZYTPOUNUXRBYGW-YUMQZZPRSA-N Met-Met Chemical compound CSCC[C@H]([NH3+])C(=O)N[C@H](C([O-])=O)CCSC ZYTPOUNUXRBYGW-YUMQZZPRSA-N 0.000 description 2
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N Propene Chemical compound CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 229940053195 antiepileptics hydantoin derivative Drugs 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- JSXPCVUETJIQHE-UHFFFAOYSA-L dipotassium;methanedisulfonate Chemical compound [K+].[K+].[O-]S(=O)(=O)CS([O-])(=O)=O JSXPCVUETJIQHE-UHFFFAOYSA-L 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000007127 saponification reaction Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- DSGXRCPUXCXBIE-UHFFFAOYSA-N 1-(2-methylsulfanylethyl)imidazolidine-2,4-dione Chemical compound CSCCN1CC(=O)NC1=O DSGXRCPUXCXBIE-UHFFFAOYSA-N 0.000 description 1
- WNIBZNVECOPXJZ-UHFFFAOYSA-N 2-(2-methylsulfanylethylcarbamoylamino)acetamide Chemical compound CSCCNC(=O)NCC(N)=O WNIBZNVECOPXJZ-UHFFFAOYSA-N 0.000 description 1
- KEWQOHRHOLVUNJ-UHFFFAOYSA-N 2-(2-methylsulfanylethylcarbamoylamino)acetic acid Chemical compound CSCCNC(=O)NCC(O)=O KEWQOHRHOLVUNJ-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- FFEARJCKVFRZRR-SCSAIBSYSA-N D-methionine Chemical compound CSCC[C@@H](N)C(O)=O FFEARJCKVFRZRR-SCSAIBSYSA-N 0.000 description 1
- 229930182818 D-methionine Natural products 0.000 description 1
- 102100022653 Histone H1.5 Human genes 0.000 description 1
- 101000899879 Homo sapiens Histone H1.5 Proteins 0.000 description 1
- GSYTVXOARWSQSV-BYPYZUCNSA-N L-methioninamide Chemical compound CSCC[C@H](N)C(N)=O GSYTVXOARWSQSV-BYPYZUCNSA-N 0.000 description 1
- 229930195722 L-methionine Natural products 0.000 description 1
- KZVRXPPUJQRGFN-UHFFFAOYSA-N N-carbamoylglycine Chemical class NC(=O)NCC(O)=O KZVRXPPUJQRGFN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000002479 acid--base titration Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 150000001339 alkali metal compounds Chemical class 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000007514 bases Chemical class 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 1
- 235000015497 potassium bicarbonate Nutrition 0.000 description 1
- 239000011736 potassium bicarbonate Substances 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 235000011118 potassium hydroxide Nutrition 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
- C07C319/26—Separation; Purification; Stabilisation; Use of additives
- C07C319/28—Separation; Purification
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/009—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping in combination with chemical reactions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
- C07C319/14—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides
- C07C319/20—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides by reactions not involving the formation of sulfide groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C323/00—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
- C07C323/50—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton
- C07C323/51—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton
- C07C323/57—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being further substituted by nitrogen atoms, not being part of nitro or nitroso groups
- C07C323/58—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being further substituted by nitrogen atoms, not being part of nitro or nitroso groups with amino groups bound to the carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/54—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
- C07D233/66—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D233/72—Two oxygen atoms, e.g. hydantoin
- C07D233/76—Two oxygen atoms, e.g. hydantoin with substituted hydrocarbon radicals attached to the third ring carbon atom
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
HCN+2H2O→NH3+HCOOH II
によってNH3の製造が行われる。
1.100mm以上の堰高さを有する反応精留塔を包含する、メチオニン塩を製造するための反応系。
2.堰高さが100〜1000mmの範囲、好ましくは150〜700mmの範囲にあり、
段間隔が500〜1000mmの範囲にあり、
堰長さに対する塔直径の比が1.1〜1.3の範囲にあり、
気体が貫流する面積に対する断面積の比が1.5〜2の範囲にあり、かつ
段数が15〜25の範囲、好ましくは18〜20の範囲にある、
1に従った反応系。
3.反応精留塔が、シーブトレイ塔(Siebbodenkolonne)、多孔板塔(Schlitzbodenkolonne)、バルブトレイ塔又は泡鐘段塔である、1又は2に従った反応系。
4.精留塔において、全ての孔の総面積/気体が貫流する面積の比が0.04〜0.08の範囲にあり、かつ
シーブトレイにおける個々の孔の直径が5〜10mmの範囲にある、
3に従った反応系。
5.堰高さが、1段当たり0.5分未満のそのつどの混合物の平均滞留時間を保証する、1から4までのいずれかに従った反応系。
6.反応系が、さらに少なくとも1つの吸収装置及び任意に後続反応器を5−(2−メチルメルカプトエチル)−ヒダントインの製造のために包含する反応系。
7.反応吸収装置が噴射式洗浄系である、5に従った反応系。
8.ジルコニウムが、反応精留塔及び/又は反応吸収装置及び/又は後続反応器において、生成物と接触する部材の材料として使用される、1から7までのいずれかに従った反応系。
1.メチオニン塩の連続的な製造法であって、ここで、以下の工程:
− 3−メチルメルカプトプロピオンアルデヒドとシアン化水素との、又はそれらから製造可能な成分の反応工程、ここで、5−(2−メチルメルカプトエチル)−ヒダントインを含有する溶液を得る;
− 得られた5−(2−メチルメルカプトエチル)−ヒダントインを、反応精留塔内でアルカリ加水分解を行ってメチオニン塩を形成する工程、ここで、反応精留塔の最上段には、5−(2−メチルメルカプトエチル)−ヒダントインを含有する溶液のみを供給し、かつアルカリ性の循環溶液を、その下に位置する段、有利には上から2つ目の段に供給する、
を実施する方法。
2.アルカリ性の循環溶液が、アルカリ金属炭酸塩、好ましくは炭酸カリウムを含有する、1に従った方法。
3.水、アンモニア及びCO2を反応精留塔から頂部を介して除去し、除去したNH3を完全に又は部分的に凝縮して5−(2−メチルメルカプトエチル)−ヒダントインの合成に用いる、1又は2に従った方法。
4.アンモニアの濃度が、反応精留塔の缶出液中で120ppm未満、有利には100ppm未満、最も有利には80ppm未満である、1から3までのいずれかに従った方法。
5.5−(2−メチルメルカプトエチル)−ヒダントインを形成するための反応を、反応吸収装置と、引き続き後続反応器、好ましくは流管として設計された後続反応器とにおいて実施する、1から4までのいずれかに従った方法。
6.反応混合物の温度が、反応精留塔の流出口で180℃〜190℃の範囲にある、1から5までのいずれかに従った方法。
7.反応精留塔の頂部での気相の温度が160℃〜170℃の範囲にある、1から6までのいずれかに従った方法。
8.アルカリ加水分解を、8bar(過剰)〜10bar(過剰)の範囲の圧力にて実施する、1から7までのいずれかに従った方法。
9.反応精留塔における加熱媒体及びストリッピング媒体として水蒸気を使用する、1から8までのいずれかに従った方法。
10.上記1から8までのいずれかに従った反応系において実施する、1から9までのいずれかに従った方法。
堰高さ8:100〜1000mm、好ましくは150〜700mm
段間隔9:500〜1000mm
比:塔直径4/堰長さ3:1.1〜1.3
比:断面積/気体が貫流する面積:1.5〜2
段数:15〜25、殊に18〜20
比:全ての孔の総面積/気体が貫流する面積:0.04〜0.08
シーブトレイ内の個々の孔の直径5〜10mm
例1
本発明の更なる説明のために図2を用いる。
Claims (20)
- 100〜1000mmの範囲の堰高さを有する反応精留塔を包含する、メチオニン塩を製造するための反応系であって、ここで、前記反応精留塔において、
5−(2−メチルメルカプトエチル)−ヒダントインのアルカリ加水分解によってメチオニン塩が形成され、並びに
段間隔が500〜1000mmの範囲にあり、
堰長さに対する塔直径の比が1.1〜1.3の範囲にあり、
気体が貫流する面積に対する断面積の比が1.5〜2の範囲にあり、かつ
段数が15〜25の範囲にあり、
前記反応系が、さらに少なくとも1つの反応吸収装置を含む、
反応系。 - 前記堰高さが150〜700mmの範囲にある、請求項1記載の反応系。
- 前記反応精留塔が、シーブトレイ塔、多孔板塔、バルブトレイ塔又は泡鐘段塔である、請求項1又は2記載の反応系。
- 前記反応精留塔にて、
全ての孔の総面積/気体が貫流する面積の比が0.04〜0.08の範囲にあり、かつ
シーブトレイにおける個々の孔の直径が5〜10mmの範囲にある、
請求項3記載の反応系。 - 前記堰高さが、1段当たり0.5分未満のそのつどの混合物の平均滞留時間を保証する、請求項1から4までのいずれか1項記載の反応系。
- 前記反応系が、さらに後続反応器を5−(2−メチルメルカプトエチル)−ヒダントインの製造のために包含する、請求項1から5までのいずれか1項記載の反応系。
- 前記反応吸収装置が噴射式洗浄系である、請求項1から6までのいずれか1項記載の反応系。
- ジルコニウムが、反応精留塔及び/又は反応吸収装置及び/又は後続反応器において、生成物と接触する部材の材料として使用される、請求項1から7までのいずれか1項記載の反応系。
- メチオニン塩の連続的な製造法であって、ここで、以下の工程:
− 3−メチルメルカプトプロピオンアルデヒドとシアン化水素との、又はそれらから製造可能な成分の反応工程、ここで、5−(2−メチルメルカプトエチル)−ヒダントインを含有する溶液を得る当該工程;
− 得られた5−(2−メチルメルカプトエチル)−ヒダントインのアルカリ加水分解を行ってメチオニン塩を形成する工程、ここで、反応精留塔の最上段には5−(2−メチルメルカプトエチル)−ヒダントインを含有する溶液のみを供給し、かつアルカリ性の循環溶液を、その下に位置する段に供給する当該工程
を、請求項1から8までのいずれか1項記載の反応系内で実施する方法。 - 前記アルカリ性の循環溶液を、前記反応精留塔の上から2つ目の段に供給する、請求項9記載の方法。
- 前記アルカリ性の循環溶液が、アルカリ金属炭酸塩を含有する、請求項9又は10記載の方法。
- 水、アンモニア及びCO2を反応精留塔から頂部を介して除去し、かつ除去したNH3を完全に又は部分的に凝縮して5−(2−メチルメルカプトエチル)−ヒダントインの合成に用いる、請求項9から11までのいずれか1項記載の方法。
- アンモニアの濃度が、前記精留塔の缶出液中で120ppm未満である、請求項9から12までのいずれか1項記載の方法。
- 前記5−(2−メチルメルカプトエチル)−ヒダントインを形成するための前記反応を、反応吸収装置と、引き続き後続反応器とにおいて実施する、請求項9から13までのいずれか1項記載の方法。
- 前記後続反応器が、流管として設計されている、請求項14記載の方法。
- 前記反応混合物の温度が、前記反応精留塔の流出口で180℃〜190℃の範囲にある、請求項9から15までのいずれか1項記載の方法。
- 前記反応精留塔の頂部での気相の温度が160℃〜170℃の範囲にある、請求項9から16までのいずれか1項記載の方法。
- 前記アルカリ加水分解を、8bar(過剰)〜10bar(過剰)の範囲の圧力にて実施する、請求項9から17までのいずれか1項記載の方法。
- 前記反応精留塔における加熱媒体及びストリッピング媒体として水蒸気を使用する、請求項9から18までのいずれか1項記載の方法。
- メチオニン塩を製造するための、請求項1から8までのいずれか1項記載の反応系の使用。
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EP2679579A1 (de) | 2012-06-27 | 2014-01-01 | Evonik Industries AG | Integriertes Verfahren zur Herstellung von Acrolein und 3-Methylmercaptopropionaldehyd |
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